Sometimes you need to update multiple domains nameservers, and doing this one by one can be a pain, you can update multiple domains nameservers in one step as instructed below.
1- Login into your Client Area at https://secure.plusplushosting.net
2- Go to the Domains --> My Domains section in the menu.
3- Select the checkboxes in the domain names, once done, you will see many action options at the footer of the screen, select (in this case) the Manage Nameservers option.
4- Update your nameservers information. Once Updated click the Change Nameservers button at the footer of the form.